This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 2 | 3 |
| 3 | 13 |
| 4 | 33 |
| 5 | 73 |
| 6 | 133 |
| 7 | 237 |
| 8 | 381 |
| 9 | 593 |
| 10 | 857 |
| 11 | 1261 |
| 12 | 1757 |
| 13 | 2377 |
| 14 | 3109 |
| 15 | 4117 |
| 16 | 5273 |
| 17 | 6717 |
| 18 | 8353 |
| 19 | 10385 |
| 20 | 12665 |
| 21 | 15325 |
| 22 | 18249 |
| 23 | 21905 |
| 24 | 25921 |
| 25 | 30453 |
| 26 | 35377 |
| 27 | 41325 |
| 28 | 47749 |
| 29 | 54985 |
| 30 | 62765 |
| 31 | 71529 |
| 32 | 80913 |
| 33 | 91389 |
| 34 | 102513 |
| 35 | 115421 |
| 36 | 129113 |
| 37 | 144005 |
| 38 | 159761 |
| 39 | 177737 |
| 40 | 196685 |